Alpina is returning to racing after 20 years of absence with B6 GT3. Engine is identical to the supercharged V8 as the road going B6 except for the dry sump. Transmission is a sequential 6 speed Xtrac with a two-plate sintered metal clutch and a Drexler limited slip differential. Ride height has been reduced by 70mm using Eibach springs and Bilstain shocks. Body is from lightweight plastic and carbon fiber weighing 1,350 kg, 400 kg less than road going B6.